|Reduced Hamiltonians - Rubio, Jose A.|
Keywords: Hamiltonian operator
|Classical Dynamics: A Modern Perspective|
a monograpgh of classical mechanics
Keywords: mechanics; action; hamiltonian; lagrangian
|The powers of a connected graph are highly hamiltonian (Volume 75B) - Bhat, Vasanti N.|
Journal of Research of the National Bureau of Standards
Keywords: graph; hamiltonian; power of a graph
|The cube of every connected graph is 1-hamiltonian (Volume 73B) - Chartrand, Gary|
Journal of Research of the National Bureau of Standards
Keywords: Cube of a graph; graph; hamiltonian
|Feynman Physics Lectures V 3 Ch 08 1963 05 02 The Hamiltonian Matrix|
Tome 3Chapitre _
Keywords: Physics; Quantum Mechanics; Hamiltonian Matrix; Feynman
|Some Hamiltonian results in powers of graphs (Volume 77B) - Hobbs, Arthur M.|
Journal of Research of the National Bureau of Standards
Keywords: Combinatorics; connectivity; Euler graphs; 2-factors; graph theory; Hamiltonian circuits; Hamiltonian connected; powers of graphs
|Hamiltonian paths through two- and three-dimensional grids (Volume 110) - Mitchell, W.F.|
Journal of Research of the National Institute of Standards and Technology
Keywords: adaptive grid refinement; load balancing; Hamiltonian path; refinement-tree partition
|Ideal gas thermodynamic functions for water (Volume 92) - Woolley, H.W.|
Journal of Research of the National Bureau of Standards
Keywords: anharmonicities; centrifugal effects; ellipsoidal shell; Hamiltonian; semi-axes; vibrational states
|Non-linear resonance of fluids in a crystal growth cavity - Wang, Francis C|
In the microgravity environment, the effect of gravity on fluid motion is much reduced. Hence, secondary effects such as vibrations, jitters, surface tension, capillary effects, and electromagnetic forces become the dominant mechanism of fluid convection. Numerous studies have been conducted to investigate fluid behavior in microgravity with the ultimate goal of developing processes with minimal influence from convection...
Keywords: HAMILTONIAN FUNCTIONS; RADIATION DISTRIBUTION; RAMAN SPECTRA; DEGENERATION; PHOTONS
|Detailed measurements in the SSME high pressure fuel turbine with smooth rotor blades - Hudson, Susan T|
Several tests of the Rocketdyne configuration of the Space Shuttle Main Engine (SSME) High Pressure Fuel Turbopump (HPFTP) Turbine have been completed in the Turbine Test Equipment (TTE) at Marshall Space Flight Center. The tests involved using scaled performance parameters and model measurements to predict the performance of the turbine. The overall performance has been the primary objective of the tests to date, but more detailed measurements are also of interest...
Keywords: DEFORMATION; HAMILTONIAN FUNCTIONS; POSITION (LOCATION); QUANTUM MECHANICS; ENERGY DISTRIBUTION; MOMENTUM
|The aerodynamic-force and heat-transfer characteristics of lifting reentry bodies - Armstrong, W. O.|
No Abstract Available
Keywords: PERTURBATION THEORY; VARIATIONS; ANGULAR MOMENTUM; EIGENVALUES; HAMILTONIAN FUNCTIONS; INDEPENDENT VARIABLES
|Three-D CFD analysis of hydrostatic bearings - Lin, Shyi-Jang|
The hydrostatic bearing promises life and speed characteristics currently unachievable with rolling element bearings alone. In order to achieve the speed and life requirements of the next generation of rocket engines, turbopump manufacturers are proposing hydrostatic bearings to be used in place of, or in series with, rolling element bearings. The design of a hydrostatic bearing is dependent on accurate pressure in the bearing...
Keywords: COMPRESSING; COUNTING; DEFORMATION; LASERS; PHOTONS; SELECTION; COMMUTATION; HAMILTONIAN FUNCTIONS
|Schaum's Theory and Problems of Theoretical Mechanics - Murray R. Spiegel|
Murray R. Spiegel Schaum's Theory and Problems of Theoretical Mechanics McGraw-Hill 1967 Acrobat 7 Pdf 17.5 Mb. Scanned by artmisa using Canon DR2580C + flatbed option
Keywords: Physics; Vectors; Newton's Laws; SHM; Planetary Motion; Lagrange; Hamiltonian
Downloads: 11,111 (1 review)
|Model Hamiltonians for the calculation of atomic and molecular spectroscopy - Baker, John David|
Keywords: Atomic spectroscopy; Molecular spectroscopy; Quantum chemistry; Hamiltonian systems
|Studies in Graph Theory part 1 - D.R. Fulkerson ( Ed.)|
D.R. Fulkerson ( Ed.) Studies in Graph Theory part 1 ( Studies in Mathematics Volume 11 ) The Mathematical Association of America 1975 Acrobat 7 Pdf 7.54 Mb. Scanned by artmisa using Canon DR2580C + flatbed option
Keywords: Mathematics; Electrical Network Models; Hamiltonian Circuits; Eigenvalue; Chromial; Polytopal Graph
|Fock State Generation From the Nonlinear Kerr Medium - Leonski, W.|
We discuss a system comprising a nonlinear Kerr medium in a cavity driven by an external coherent field directly or through the parametric process. We assume that the system is initially in the vacuum state, and we show that under appropriate conditions, i.e., properly chosen detuning and intensity of the driving field, the one or two-photon Fock states of the electromagnetic field can be achieved.
Keywords: COLLAPSE; WAVE FUNCTIONS; QUANTUM MECHANICS; EIGENVECTORS; HAMILTONIAN FUNCTIONS
|Tactile discrimination and representations of texture, shape, and softness - Srinivasan, M. A.|
We present here some of the salient results on the tactual discriminabilities of human subjects obtained through psychophysical experiments, and the associated peripheral neural codes obtained through electrophysiological recordings from monkey single nerve fibers. Humans can detect the presence of a 2 micron high single dot on a smooth glass plate stroked on the skin, based on the responses of Meissner type rapidly adapting fibers (RAs)...
Keywords: HAMILTONIAN FUNCTIONS; QUANTUM MECHANICS; SQUEEZED STATES (QUANTUM THEORY); TIME DEPENDENCE; WIGNER COEFFICIENT; HARMONIC OSCILLATORS; QUADRATIC EQUATIONS
|Integrity with Spiderweb Parallelism-Logistic Resilence with Interference Counting in Air/Sea-Ports|
To counter occlusion, interference due to (water/metal) material and (truck drivers’ personal privacy devices’) radio in heavy traffic, security concerned air/sea-ports, optimal-degree-three, detection availability concerned spiderweb networks, SW(m,n) are incorporated with radio frequency identification (RFID) applications and sampled in the dedicated short range communications (DSRC) along critical passages, including those within logistic/vehicle architectures...
Keywords: Detection Avavailability; Hamiltonian; Mobile Business; Personal Privacy Device (PPD); Vehicle Architecture
|Initial Time Dependence of Abundances in Solar Energetic Particle Events - Reames, Donald V.|
We compare the initial behavior of Fe/O and He/H abundance ratios and their relationship to the evolution of the proton energy spectra in ''small'' and ''large'' gradual solar energetic particle (SEP) events. The results are qualitatively consistent with the behavior predicted by the theory of Ng et al. (1999a, b). He/H ratios that initially rise with time are a signature of scattering by non-Kolmogorov Alfven wave spectra generated by intense beams of shock-accelerated protons streaming outward...
Keywords: ELECTROMAGNETIC FIELDS; GRAVITATION; INERTIA; THEORETICAL PHYSICS; ZERO POINT ENERGY; VACUUM; STOCHASTIC PROCESSES; QUANTUM ELECTRODYNAMICS; HAMILTONIAN FUNCTIONS
|Navier-Stokes flow field analysis of compressible flow in a pressure relief valve - Vu, Bruce T.|
The present study was motivated to analyze the complex flow field involving gaseous oxygen (GOX) flow in a relief valve (RV). The 9391 RV, pictured in Figure 1, was combined with the pilot valve to regulate the actuation pressure of the main valve system. During a high-pressure flow test at Marshall Space Flight Center (MSFC) the valve system developed a resonance chatter, which destroyed most of the valve body...
Keywords: ALGORITHMS; APPROXIMATION; HARMONIC OSCILLATORS; ORTHOGONAL FUNCTIONS; EIGENVECTORS; HAMILTONIAN FUNCTIONS; HERMITIAN POLYNOMIAL; RANDOM SAMPLING; SCHROEDINGER EQUATION
|The corrosion resistance of certain metallic materials for astronomical mirrors - Loretsyan, Zh. M|
Corrosion resistance of aluminum magnesium alloy with chromium coating for astronomical mirrors
Keywords: ELECTRON ENERGY; PARTITIONS (MATHEMATICS); WAVE FUNCTIONS; APPROXIMATION; HAMILTONIAN FUNCTIONS; MATRICES (MATHEMATICS); PERTURBATION THEORY; TRANSFORMATIONS (MATHEMATICS)
|Tele-existence and/or cybernetic interface studies in Japan - Tachi, Susum|
Tele-existence aims at a natural and efficient remote control of robots by providing the operator with a real time sensation of presence. It is an advaced type of teleoperation system which enables a human operator at the controls to perform remote manipulation tasks dexterously with the feeling that he or she exists in one of the remote anthropomorphic robots in the remote environment, e.g., in a hostile environment such as those of nuclear radiation, high temperature, and deep space...
Keywords: CRITERIA; HAMILTONIAN FUNCTIONS; MAGNETIC FIELDS; NEUTRAL PARTICLES; QUADRUPOLES; COVARIANCE; HEISENBERG THEORY
|Unstructured grids on SIMD torus machines - Bjorstad, Petter E.|
Unstructured grids lead to unstructured communication on distributed memory parallel computers, a problem that has been considered difficult. Here, we consider adaptive, offline communication routing for a SIMD processor grid. Our approach is empirical. We use large data sets drawn from supercomputing applications instead of an analytic model of communication load. The chief contribution of this paper is an experimental demonstration of the effectiveness of certain routing heuristics...
Keywords: DEGREES OF FREEDOM; DIRAC EQUATION; LAGRANGIAN FUNCTION; OSCILLATORS; WAVE EQUATIONS; CONSISTENCY; FORMALISM; HAMILTONIAN FUNCTIONS
|Rotational temperature measurements 300 deg K to 1000 deg K with electron beam probe - Hunter, W. W., Jr|
Laboratory measurements of rotational temperatures in static low density air with electron beam probe
Keywords: LINEARITY; OPTIMAL CONTROL; TRAJECTORY OPTIMIZATION; CONSTRAINTS; HAMILTONIAN FUNCTIONS; LINEAR PROGRAMMING; MATRICES (MATHEMATICS)
|The Functional Variable Method to Some Complex Nonlinear Evolution Equations|
In this paper, it shows the applicability of thefunctional variable method for the exact solutions of somecomplex nonlinear evolution equations. By using this scheme,we found some exact solutions of the nonlinear Schrödinger,new Hamiltonian amplitude and coupled Higgs fields equations.Then, some of the solitary solutions are converted to periodicsolutions or hyperbolic function solutions by a simpletransformation.
Keywords: The Functional Variable Method; Nonlinear Schrödinger Equation; New Hamiltonian Amplitude Equation; Coupled Higgs Fields Equations
|THE DO 31 LANDING LOADS DURING VERTICAL LANDING AND THEIR CONSEQUENCES FOR FUTURE V/STOL DEVELOPMENTS - SCHOERNACK, W|
THE RESULTS OF 83 VERTICAL LANDINGS CARRIED OUT DURING THE DO 31 V/STOL EXPERIMENTAL PROGRAM ARE PRESENTED. IN 23 LANDINGS UNDERCARRIAGE REACTIONS AS WELL AS SINKING SPEEDS WERE MEASURED, OF THE REMAINING 60 LANDINGS ONLY SINKING SPEEDS COULD BE EVALUATED. UNDERCARRIAGE REACTION FACTORS AND SINKING SPEEDS ARE PLOTTED AS FREQUENCY DISTRIBUTIONS AND ARE DISCUSSED. THE RESULT OF THE EVALUATION OF THE LANDING EXPERIMENTS CAN BE SUMMARIZED AS FOLLOWS: VTOL AIRPLANES HAVING A SIMILAR CONCEPT AS THE DO...
Keywords: HYDROGEN ATOMS; POSITRONS; RESONANCE SCATTERING; APPROXIMATION; EIGENVECTORS; HAMILTONIAN FUNCTIONS; POSITRONIUM; S WAVES
|Solution of minimum problems of the airfoil theory - Nickel, Kar|
No Abstract Available
Keywords: ADIABATIC CONDITIONS; PARTICLE INTERACTIONS; PERTURBATION THEORY; QUANTUM MECHANICS; HAMILTONIAN FUNCTIONS; RELATIVISTIC PARTICLES
|Numerical study of three-dimensional spatial instability of a supersonic flat plate boundary layer - Maestrello, Lucio|
The behavior of spatially growing three-dimensional waves in a supersonic boundary layer was studied numerically by solving the complete Navier-Stokes equations. Satisfactory comparison with linear parallel and non-parallel stability theories, and experiment are obtained when a small amplitude inflow disturbance is used. The three-dimensional unsteady Navier-Stokes equations are solved by a finite difference method which is fourth-order and second-order accurate in the convection and viscous ter...
Keywords: ARCHITECTURE (COMPUTERS); CODING; HAMILTONIAN FUNCTIONS; MEMORY (COMPUTERS); NEURAL NETS; HIERARCHIES; MATRICES (MATHEMATICS); VECTORS (MATHEMATICS)
|Numerical computation of aerodynamics and heat transfer in a turbine cascade and a turn-around duct using advanced turbulence models - Lakshminarayana, B.|
The objective of this research is to develop turbulence models to predict the flow and heat transfer fields dominated by the curvature effect such as those encountered in turbine cascades and turn-around ducts. A Navier-Stokes code has been developed using an explicit Runge-Kutta method with a two layer k-epsilon/ARSM (Algebraic Reynolds Stress Model), Chien's Low Reynolds Number (LRN) k-epsilon model and Coakley's LRN q-omega model...
Keywords: ENERGY LEVELS; HAMILTONIAN FUNCTIONS; HARMONIC OSCILLATORS; CLOSED CYCLES; ENERGY SPECTRA; IDENTITIES
|Review of betavoltaic energy conversion - Olsen, Larry C|
Betavoltaic energy conversion refers to the generation of power by coupling a beta source to a semiconductor junction device. The theory of betavoltaic energy conversion and some past studies of the subject are briefly reviewed. Calculations of limiting efficiencies for semiconductor cells versus bandgap are presented along with specific studies for Pm-147 and Ni-63 fueled devices. The approach used for fabricating Pm-147 fueled batteries by the author in the early 1970's is reviewed...
Keywords: CORRELATION; EIGENVECTORS; GEOMETRY; HEISENBERG THEORY; HILBERT SPACE; QUANTUM THEORY; HAMILTONIAN FUNCTIONS; HERMITIAN POLYNOMIAL; OPERATORS (MATHEMATICS)
|An Introduction to the Use of Generalized Coordinates in Mechanics and Physics:Part 2 - Patrick Bruskiewich|
An Introduction to the Use of Generalized Coordinates in Mechanics and Physics By William Elwood Byerly, Harvard Chapter 3-5 Ginn and Co. Boston, 1944
Keywords: Generalized Coordinates; Mechanics; Lagrange Equation; Impulsive Force; Conservative Force; Hamiltonian; Modified Lagrangian; Principle of Least Action
|An Introduction to the Use of Generalized Coordinates in Mechanics and Physics:Part 1 - Patrick Bruskiewich|
An Introduction to the Use of Generalized Coordinates in Mechanics and Physics By William Elwood Byerly, Harvard Chapter 1- 2 Ginn and Co. Boston, 1944
Keywords: Generalized Coordinates; Mechanics; Lagrange Equation; Atwood Machine; Gyroscope; Hamiltonian; Modified Lagrangian
|Studies in Graph Theory part 2 - D.R. Fulkerson ( Ed.)|
D.R. Fulkerson ( Ed.) Studies in Graph Theory part 2 ( Studies in Mathematics Volume 12 ) The Mathematical Association of America 1975 Acrobat 7 Pdf 8.48 Mb. Scanned by artmisa using Canon DR2580C + flatbed option
Keywords: Mathematics; Hamiltonian Circuits; Polytopal Graphs; Eigenvalues of Graphs; Chromials; Kempe Chains
|Laminarization of Turbulent Boundary Layer on Flexible and Rigid Surfaces - Maestrello, Luci|
An investigation of the control of turbulent boundary layer flow over flexible and rigid surfaces downstream of a concave-convex geometry has been made. The concave-convex curvature induces centrifugal forces and a pressure gradient on the growth of the turbulent boundary layer. The favorable gradient is not sufficient to overcome the unfavorable; thus, the net effect is a destabilizing, of the flow into Gortler instabilities...
Keywords: COMPUTER TECHNIQUES; COMPUTERS; ALGORITHMS; COMPUTER SYSTEMS PERFORMANCE; TURING MACHINES; ERROR CORRECTING CODES; HAMILTONIAN FUNCTIONS
|BSTJ 38: 1. January 1959: Paramagnetic Spectra of Substituted Sapphires--Part I: Ruby. (Schulz-DuBois, E.O.)|
Bell System Technical Journal, 38: 1. January 1959 pp 271-290. Paramagnetic Spectra of Substituted Sapphires--Part I: Ruby. (Schulz-DuBois, E.O.)
Keywords: eigenvectors; magnetic; transition; resonance; energy; crystalline; field; paramagnetic; hamiltonian; spectra; substituted sapphires; paramagnetic spectra; energy levels; magnetic field; applied magnetic; system technical; spin hamiltonian; crystalline axis; transition probabilities; paramagnetic resonance
|BSTJ 60: 8. October 1981: Efficient Realization Techniques for Network Flow Patterns. (Chung, F.R.K.; Graham, R.L.; Hwang, F.K.)|
Bell System Technical Journal, 60: 8. October 1981 pp 1771-1786. Efficient Realization Techniques for Network Flow Patterns. (Chung, F.R.K.; Graham, R.L.; Hwang, F.K.)
Keywords: cyclic; routing; convex; traffic; paths; vector; flow; hamiltonian; desired; algorithm; hamiltonian circuit; flow patterns; desired traffic; blocking probability; traffic flow; bell system; convex hull; network flow; system technical; cyclic routing
|A time-accurate finite volume method valid at all flow velocities - Kim, S.-W|
A finite volume method to solve the Navier-Stokes equations at all flow velocities (e.g., incompressible, subsonic, transonic, supersonic and hypersonic flows) is presented. The numerical method is based on a finite volume method that incorporates a pressure-staggered mesh and an incremental pressure equation for the conservation of mass. Comparison of three generally accepted time-advancing schemes, i.e., Simplified Marker-and-Cell (SMAC), Pressure-Implicit-Splitting of Operators (PISO), and It...
Keywords: COMMUTATION; FINITE ELEMENT METHOD; HAMILTONIAN FUNCTIONS; HARMONIC OSCILLATORS; MATRICES (MATHEMATICS); EQUATIONS OF MOTION; GROUND STATE; OPERATORS (MATHEMATICS); QUANTUM MECHANICS
|Hamiltonian Dynamics in the Theory of Abstraction - Subhajit Ganguly|
This paper deals with fluid flow dynamics which may be Hamiltonian in nature and yet chaotic.Here we deal with sympletic invariance, canonical transformations and stability of such Hamiltonian flows. As a collection of points move along, it carries along and distorts its own neighbourhood. This in turn affects the stability of such flows.
Keywords: hamiltonian dynamics; Theory of everything; condensation states; null postulation; scaling ratio; zero-postulation; theory of abstraction; Subhajit Ganguly
|Impacts of object-oriented technologies: Seven years of SEL studies - Stark, Michae|
The premise that object-oriented technology (OOT) is the most significant technology ever examined by the Software Engineering Laboratory is examined. The evolution of the use of OOT in the Software Engineering Laboratory (SEL) 'experience factory' is described in terms of the SEL's original expectations, focusing on how successive generations of projects have used OOT. General conclusions are drawn on how the usage of the technology has evolved in this environment.
Keywords: CLASSICAL MECHANICS; COORDINATES; HALF SPACES; HAMILTONIAN FUNCTIONS; PARTICLE MOTION; QUANTUM THEORY; EUCLIDEAN GEOMETRY; PROBABILITY DENSITY FUNCTIONS; SCHROEDINGER EQUATION
|Static measurement of the thickness of the ablative coating of the solid rocket boosters - Harrison, Harry C|
The Solid Rocket Boosters (SRB's) used to launch the Space Shuttle are coated with a layer of ablative material to prevent thermal damage when they reenter the earth's atmosphere. The coating consists of a mixture of cork, glass, and resin. A new coating (Marshall Convergent Coating, MCC-2) was recently developed that is environmentally complaint. The coating must meet certain minimum thickness standards in order to protect the SRB...
Keywords: HAMILTONIAN FUNCTIONS; MATRICES (MATHEMATICS); QUANTUM THEORY; STOCHASTIC PROCESSES; DISSIPATION; EQUATIONS OF MOTION; QUANTUM MECHANICS; PROBABILITY THEORY; ASYMPTOTIC PROPERTIES; MATHEMATICAL MODELS
|Response of silicon solar cell to pulsed laser illumination - Willowby, D.|
The response of silicon solar cell(s) to pulsed laser illumination is discussed. The motivation was due to the interest of Earth to space/Moon power beaming applications. When this work began, it was not known if solar cells would respond to laser light with pulse lengths in the nanosecond range and a repetition frequency in the kHz range. This is because the laser pulse would be shorter than the minority carrier lifetime of silicon...
Keywords: BESSEL FUNCTIONS; OPERATORS (MATHEMATICS); QUANTUM THEORY; EIGENVALUES; EIGENVECTORS; NONLINEARITY; OSCILLATORS; POLYNOMIALS; SQUEEZED STATES (QUANTUM THEORY); CLASSICAL MECHANICS; HAMILTONIAN FUNCTIONS
|Bonner Durchmusterung (Southern Durchmusterung) - NON|
The Southern Durchmusterung (SD, Schoenfeld 1886, Becker 1949, Schmidt 1967) is a visual survey of stars in the declination zones -02 to -23 deg, completed as an extension to Argelander's (1859-62) monumental Bonner Durchmusterung (BD). Schoenfeld's survey was carried out using the same methods as had been used for the BD. The procedure consisted of allowing the telescope to drift along the mean declination of each zone and recording the positions and magnitudes of stars crossing the transit lin...
Keywords: ASCENT TRAJECTORIES; FLIGHT PATHS; PERFORMANCE PREDICTION; SPACECRAFT TRAJECTORIES; USER MANUALS (COMPUTER PROGRAMS); HAMILTONIAN FUNCTIONS; SHUTTLE DERIVED VEHICLES; SUBROUTINES; VAX COMPUTERS
|Fundamental Boiling and RP-1 Freezing Experiments - Goode, Bria|
This paper describes results from experiments performed to help understand certain aspects of the MC-1 engine prestart thermal conditioning procedure. The procedure was constrained by the fact that the engine must chill long enough to get quality LOX at the LOX pump inlet but must be short enough to prevent freezing of RP-1 in the fuel pump. A chill test of an MC-1 LOX impeller was performed in LN2 to obtain data on film boiling, transition boiling and impeller temperature histories...
Keywords: HYDRIDES; HYDROGEN ATOMS; ROTATION; POSITRONIUM; PROTONS; RESONANCE SCATTERING; WAVE FUNCTIONS; DIFFERENTIAL EQUATIONS; HAMILTONIAN FUNCTIONS; ELECTRON ORBITALS; ELECTRON-POSITRON PAIRS
|EOL performance comparison of GaAs/Ge and Si BSF/R solar arrays - Woike, Thomas J|
EOL power estimates for solar array designs are significantly influenced by the predicted degradation due to charged particle radiation. New radiation-induced power degradation data for GaAs/Ge solar arrays applicable to missions ranging from low earth orbit (LEO) to geosynchronous earth orbit (GEO) and compares these results to silicon BSF/R arrays. These results are based on recently published radiation damage coefficients for GaAs/Ge cells...
Keywords: FORMALISM; GROUND STATE; HAMILTONIAN FUNCTIONS; HARMONIC OSCILLATORS; MOMENTUM; QUANTUM MECHANICS; WAVE PACKETS; ANALYSIS (MATHEMATICS); CLASSICAL MECHANICS; EQUATIONS OF MOTION
|Energy Efficient Engine (E3) combustion system component technology performance report - Burrus, D. L.|
The Energy Efficient Engine (E3) combustor effort was conducted as part of the overall NASA/GE E3 Program. This effort included the selection of an advanced double-annular combustion system design. The primary intent of this effort was to evolve a design that meets the stringent emissions and life goals of the E3, as well as all of the usual performance requirements of combustion systems for modern turbofan engines...
Keywords: CHARGE TRANSFER; POLARONS; SUPERCONDUCTIVITY; COPPER OXIDES; HIGH TEMPERATURE SUPERCONDUCTORS; PAIR PRODUCTION; POLARIZATION (WAVES); BOSONS; ELECTRON PHONON INTERACTIONS; HAMILTONIAN FUNCTIONS; INSULATORS
|Finite-difference solutions of the alternate turbopump development high-pressure oxidizer turbopump pump-end ball-bearing cavity flows - Benjamin, Theodore G.|
These analyses were undertaken to aid in the understanding of flow phenomena in the Alternate Turbopump Development (ATD) High-pressure Oxidizer Turbopump (HPOTP) Pump-end ball bearing (PEBB) cavities and their roles in turbopump vibration initiation and bearing distress. This effort was being performed to provide timely support to the program in a decision as to whether or not the program should be continued...
Keywords: ANNIHILATION REACTIONS; QUANTUM OPTICS; VECTORS (MATHEMATICS); WAVE FUNCTIONS; COHERENCE; HAMILTONIAN FUNCTIONS; HARMONIC OSCILLATORS; MATHEMATICAL MODELS; OPERATORS (MATHEMATICS); EQUATIONS OF STATE; FUNCTION SPACE; PHOTONS
|BSTJ 38: 1. January 1959: Paramagnetic Resonance Spectrum of Cr+++ in Emerald. (Geusic, J.E.; Peter, Martin; Schulz-DuBois, E.O.)|
Bell System Technical Journal, 38: 1. January 1959 pp 291-296. Paramagnetic Resonance Spectrum of Cr+++ in Emerald. (Geusic, J.E.; Peter, Martin; Schulz-DuBois, E.O.)
Keywords: emerald; paramagnetic; resonance; field; measurements; transitions; spectrometer; magnetic; energy; crystals; negative positive; bell system; paramagnetic resonance; system technical; magnetic field; spin hamiltonian; energy levels; field splitting
|CFD analysis of turbopump volutes - Ascoli, Edward P.|
An effort is underway to develop a procedure for the regular use of CFD analysis in the design of turbopump volutes. Airflow data to be taken at NASA Marshall will be used to validate the CFD code and overall procedure. Initial focus has been on preprocessing (geometry creation, translation, and grid generation). Volute geometries have been acquired electronically and imported into the CATIA CAD system and RAGGS (Rockwell Automated Grid Generation System) via the IGES standard...
Keywords: ASTRONOMICAL MODELS; ANGULAR VELOCITY; POTENTIAL ENERGY; ROTATION; VELOCITY DISTRIBUTION; CAUCHY PROBLEM; ELLIPSOIDS; HAMILTONIAN FUNCTIONS; HARMONIC OSCILLATORS; KINETIC ENERGY; NUCLEAR PHYSICS; SYMMETRY; ALGEBRA
|Goddard Conference on Mass Storage Systems and Technologies, Volume 1 - NON|
Copies of nearly all of the technical papers and viewgraphs presented at the Goddard Conference on Mass Storage Systems and Technologies held in Sep. 1992 are included. The conference served as an informational exchange forum for topics primarily relating to the ingestion and management of massive amounts of data and the attendant problems (data ingestion rates now approach the order of terabytes per day)...
Keywords: APPLICATIONS PROGRAMS (COMPUTERS); ASCENT TRAJECTORIES; FLIGHT PATHS; SHUTTLE DERIVED VEHICLES; USER MANUALS (COMPUTER PROGRAMS); USER REQUIREMENTS; COMPUTER PROGRAMMING; HAMILTONIAN FUNCTIONS; PERFORMANCE PREDICTION
|A coated-wire ion-selective electrode for ionic calcium measurements - Hines, John W.|
A coated-wire ion-selective electrode for measuring ionic calcium was developed, in collaboration with Teknektron Sensor Development Corporation (TSDC). This coated wire electrode sensor makes use of advanced, ion-responsive polyvinyl chloride (PVC) membrane technology, whereby the electroactive agent is incorporated into a polymeric film. The technology greatly simplifies conventional ion-selective electrode measurement technology, and is envisioned to be used for real-time measurement of physi...
Keywords: COMMUTATORS; HEISENBERG THEORY; OPERATORS (MATHEMATICS); SPACE-TIME FUNCTIONS; YANG-MILLS THEORY; DIRAC EQUATION; FERMI-DIRAC STATISTICS; GAUGE THEORY; HAMILTONIAN FUNCTIONS; QUANTUM STATISTICS; QUANTUM THEORY; SPINOR GROUPS; TENSORS